In this chapter, we added libraries from the Xamarin Component Store to Xamarin projects and ported an existing C# library, Ninject, to both Xamarin.iOS and Xamarin.Android. Next, we installed Objective Sharpie and explored its usage to generate Objective-C bindings. Finally, we wrote a functional Objective-C binding for the Google Analytics SDK for iOS and a Java binding for the Google Analytics SDK for Android. We also wrote several XPath expressions to clean up the Java binding.

There are several available options to use the existing third-party libraries from your Xamarin.iOS and Xamarin.Android applications. We looked at everything from using the Xamarin Component Store, porting existing code and setting up Java and Objective-C libraries to be used from C#. In the next chapter, we will cover the Xamarin.Mobile library as a way to access a user's contacts, camera, and GPS location.